|
|
Sponsored Content
The Lounge
What is on Your Mind?
MQTT, Node-RED, Linux, Apache2, MySQL, PHP, Telegram, ESP32, ESP8266, Arduino
Post 303044512 by Neo on Monday 24th of February 2020 09:57:40 PM
02-24-2020
Administrator
Update (v0.12):
.
- Added missing Node-RED development node.
- Added missing Arduino-UNO serial node.
- Fixed order of LAMP bullets
|
|
8 More Discussions You Might Find Interesting
1. Web Development
I can't use mysql .How should i config the file of php.ini . the message:
Fatal error: Call to undefined function mysql_errno() in /var/www/html/inc/dv_clssql.php on line 129
how should i do? please help me (2 Replies)
Discussion started by: fang_xiaoan
2 Replies
2. Web Development
This problem has been killing me all day, and I cannot solve it.
Basically, I am using node.js with the mysql module and it will not connect to the database.
Here is the JS code snippet in node.js:
app.get("/test", function(req, res) {
var mysql = require("mysql");
var con =... (4 Replies)
Discussion started by: Neo
4 Replies
3. Programming
In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today.
https://github.com/arduino/arduino-cli
I followed the instructions for macOS but when I got to this part:
arduino-cli board list
I got the dreaded "Unknown" Fully Qualified Board Name... (1 Reply)
Discussion started by: Neo
1 Replies
4. Programming
Here is a useful SSL (HTTPS) application for anyone with a remote Linux server they want to keep an eye on using Blynk and the NodeMCU ESP8266. This little app also works (have tested as well) on the WeMos D1 ESP8266 Arduino board.
The NodeMCU setup could not be easier, just find a... (8 Replies)
Discussion started by: Neo
8 Replies
5. Programming
Here we go....
Preface:
..... so in a galaxy far, far, far away from commercial, data sharing corporations.....
For this project, I used the ESP-WROOM-32 as an MQTT (publish / subscribe) client which receives Linux server "load averages" as messages published as MQTT pub/sub messages.... (6 Replies)
Discussion started by: Neo
6 Replies
6. Infrastructure Monitoring
After setting up MQTT and testing some ESP8266 and ESP32 modules, where I noted that testing in Programming ESP32 (ESP-WROOM-32) as an MQTT Client Subscribed to Linux Server Load Average Messages, I was so impressed with MQTT that I installed MQTT on three different computers, instantly and... (2 Replies)
Discussion started by: Neo
2 Replies
7. Programming
Various Node-Red crypto modules do not work with PHP, so to send an encrypted message from a PHP script (in this case from a Ubuntu server) to Node-RED we need our own code.
After a few hours of searching, testing various libs, more testing and debugging, I got this PHP to Node-RED code... (0 Replies)
Discussion started by: Neo
0 Replies
8. Programming
First, I want to thank Neo (LOL) for this post from 2018, Node.js and mysql - ER_ACCESS_DENIED_ERROR
I could not get the Node-RED mysql module to work and searched Google until all my links were purple! I kept getting ER_ACCESS_DENIED_ERROR with the right credentials. Nothing on the web was... (0 Replies)
Discussion started by: Neo
0 Replies
LEARN ABOUT LINUX
ndb_print_schema_file
NDB_PRINT_SCHEMA_(1) MySQL Database System NDB_PRINT_SCHEMA_(1) NAME
ndb_print_schema_file - print NDB schema file contents SYNOPSIS
ndb_print_schema_file file_name DESCRIPTION
ndb_print_schema_file obtains diagnostic information from a cluster schema file. Usage ndb_print_schema_file file_name file_name is the name of a cluster schema file. For more information about cluster schema files, see MySQL Cluster Data Node FileSystemDir Files[1]. Like ndb_print_backup_file and ndb_print_sys_file (and unlike most of the other NDB utilities that are intended to be run on a management server host or to connect to a management server) ndb_schema_backup_file must be run on a cluster data node, since it accesses the data node file system directly. Because it does not make use of the management server, this utility can be used when the management server is not running, and even when the cluster has been completely shut down. Additional Options None. COPYRIGHT
Copyright (C) 1997, 2014, Oracle and/or its affiliates. All rights reserved. This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/. NOTES
1. MySQL Cluster Data Node FileSystemDir Files http://dev.mysql.com/doc/ndbapi/en/ndb-internals-ndbd-filesystemdir-files.html SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/. AUTHOR
Oracle Corporation (http://dev.mysql.com/). MySQL 5.5 01/30/2014 NDB_PRINT_SCHEMA_(1)